Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA) for the lower bile duct. (a) Mass lesion was seen in the lower bile duct (arrow). (b) Using a 22-guage FNA needle, we puncture the tumor from the duodenum. (c) The cytological result is adenocarcinoma. (d) Histologically, this patient was also diagnosed with cholangiocarcinoma.
